I wrote: > Interesting. In case it helps, I have accurate timestamps for the three > events we've seen so far: > 2021-04-22 20:16:43 MSK > 2021-05-05 20:25:52 MSK > 2021-05-07 03:31:39 MSK Oh, one more thing: that buildfarm instance has been running this same test case about once a day for a good long time. We never saw this type of error before, but now we have two such failures in its last ten runs. So it seems pretty clear that the issue started in mid-April. If that machine had a kernel update around then, maybe some suspicion should fall on that. regards, tom lane
